23311245440000 has 440 divisors, whose sum is σ = 66651501692160. Its totient is φ = 7980208128000.

The previous prime is 23311245439987. The next prime is 23311245440023. The reversal of 23311245440000 is 4454211332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3221116382 + ... + 3221123618.

It is an arithmetic number, because the mean of its divisors is an integer number (151480685664).

Almost surely, 2^{23311245440000} is an apocalyptic number.

23311245440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23311245440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33325750846080).

23311245440000 is an abundant number, since it is smaller than the sum of its proper divisors (43340256252160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23311245440000 is an frugal number, since it uses more digits than its factorization.

23311245440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003 (or 7970 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 23311245440000 its reverse (4454211332), we get a palindrome (23315699651332).

The spelling of 23311245440000 in words is "twenty-three trillion, three hundred eleven billion, two hundred forty-five million, four hundred forty thousand".